The fluorspar deposits of southern Illinois /
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Main Author: | |
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Format: | Government Document Electronic eBook |
Language: | English |
Published: |
Washington, D.C. :
Department of the Interior, United States Geological Survey,
1905.
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Series: | Bulletin (Geological Survey (U.S.)) ;
no. 255. Series A--Economic geology ; 50. Series B--Descriptive geology ; 62. |
Subjects: | |
Online Access: | CONNECT |